Laserfiche WebLink
Environmental Protection Plan, Schwartzwalder Mine 13-3 <br />.7 <br />Table 13-3. Average Wind Speeds by Direction in 1987 and 1996 <br /> Average S eed (mph) <br />Wind Direction 1987 1996 <br />WNW-N 14.7 8.3 <br />NNE-E 9.6 5.8 <br />ESE-S 8.6 5.9 <br />SSW-W 9.7 6.1 <br />Overall Average: 12.1 8.3 <br />N <br />• <br />W <br />`l\\ L, \ <br />E <br />CALM WINDS .10% <br />S <br />21.0 <br />3.0 6.0 10.0 16.0 r <br />WIND SPEED CLASS BOUNDARIES <br />(KNOTS) <br />NOTES: <br />DIAGRAM OF THE FREQUENCY OF <br />OCCURRENCE FOR EACH WIND DIRECTION. <br />WIND DIRECTION IS THE DIRECTION <br />FROM WHICH THE WIND IS BLOWING. <br />EXAMPLE - WIND 15 BLOWING FROM THE <br />NORTH 9.7 PERCENT OF THE TIME. <br />„ 40% <br />Environmentol <br />Engineering <br />Figure 13-1. Wind Rose Diagram Showing Wind Directions and Speeds for 1997 <br />• <br />4109C.100731 <br />WINDROSE <br />SW Mine, Lower Sta. <br />PERIOD: 1997 <br />WhetstoneAssociatesiii